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Finding the Fourth Proportional to 446,672.72, 669,993.96 and 109,712.72

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Solution

The fourth proportional to 446,672.72, 669,993.96 and 109,712.72 is: 164,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,672.72 : 669,993.96 = 109,712.72 : x
  2. Step 2: Convert to fraction form
    446,672.72/669,993.96 = 109,712.72/x
  3. Step 3: Cross multiply
    446,672.72x = 669,993.96 × 109,712.72
  4. Step 4: Simplify right side
    446,672.72x = 73,506,859,735.17
  5. Step 5: Solve for x
    x = 73,506,859,735.17/446,672.72
  6. Step 6: Final answer
    x = 164,565.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.